The researchіng the functіonal state іndexes of sensor systems of schoolchіldren wіth the vіsіonal dіsfunctіons Journal title: Slobozans`kij Naukovo-Sportivnij Visnik [Slobozhanskyi Herald of Science and Sport] Authors: Liudmila Shesterova| Харківська державна академія фізичної культури Subject(s): Education, Sports and Recreation, Rehabilitation, Health and Wellness